About D&W Mechanical Traverse City's Expert Geothermal Source You can look to D&W Mechanical for all your WaterFurnace Traverse City geothermal heating and cooling needs, including... planning assistance. complete comfort system installation. routine service and maintenance. emergency repair. energy-saving advice and consultation. Giving total customer satisfaction is our utmost priority in the Traverse City area, and our highly qualified professional staff will see to that.It's hard not to be satisfied when you choose the best heating and cooling system on the market today. We will see to it that your new system lives up to all of your demands, helping you to save big money on your energy costs and enhance your home's conditioning efficiency. Contact D&W Mechanical today to get a free estimate and a cost savings analysis for your home.